Drive Assy - Pioneer PDP-4271HD Service Manual

1
4.8 42 Y DRIVE ASSY
A
VH
IC5V
Y2
B
PSUS
C
D
PSUS
E
VH
IC5V
F
Y3
52
1
2
VH
VH DC/DC Conv.
Vprst
Vprst Reg.
+5V +16.5V VSUS
IC2252
Mask
Mod.
VSUS
+5V +16.5V
IC2253
Mask
Mod.
Soft-D
Block
IC5V
IC5V
VF
Photo Coupler
Block
PDP-4271HD
2
3
VSUS
Vprst
+ Reset
Block
VOFS
VSUS
+5V
+6.5V
Regulator
+16.5V
Y4
Resonance
Block
+5V +16.5V
IC2101
DK Mod.
+16.5V
+16.5V
IC5V/VF
DC/DC
Conv.
+5V
Scan Signal
3
4
VOFS
Offset
Block
VOFS
+16.5V
DC/DC
Conv.
+5V
Logic
Block
Y1
+5V
Y5
60V
Y6
4